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// Copyright 2013-2025 Daniel Parker
// Distributed under the Boost license, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See https://github.com/danielaparker/jsoncons for latest version
#ifndef JSONCONS_EXT_BSON_BSON_READER_HPP
#define JSONCONS_EXT_BSON_BSON_READER_HPP
#include <cstddef>
#include <memory>
#include <system_error>
#include <utility> // std::move
#include <jsoncons/config/compiler_support.hpp>
#include <jsoncons/json_exception.hpp>
#include <jsoncons/json_visitor.hpp>
#include <jsoncons/source.hpp>
#include <jsoncons_ext/bson/bson_parser.hpp>
namespace jsoncons { namespace bson {
template <typename Source,typename TempAllocator =std::allocator<char>>
class basic_bson_reader
{
basic_bson_parser<Source,TempAllocator> parser_;
json_visitor& visitor_;
public:
template <typename Sourceable>
basic_bson_reader(Sourceable&& source,
json_visitor& visitor,
const TempAllocator& temp_alloc)
: basic_bson_reader(std::forward<Sourceable>(source),
visitor,
bson_decode_options(),
temp_alloc)
{
}
template <typename Sourceable>
basic_bson_reader(Sourceable&& source,
json_visitor& visitor,
const bson_decode_options& options = bson_decode_options(),
const TempAllocator& temp_alloc=TempAllocator())
: parser_(std::forward<Sourceable>(source), options, temp_alloc),
visitor_(visitor)
{
}
void read()
{
std::error_code ec;
read(ec);
if (JSONCONS_UNLIKELY(ec))
{
JSONCONS_THROW(ser_error(ec,line(),column()));
}
}
void read(std::error_code& ec)
{
parser_.reset();
parser_.parse(visitor_, ec);
if (JSONCONS_UNLIKELY(ec))
{
return;
}
}
std::size_t line() const
{
return parser_.line();
}
std::size_t column() const
{
return parser_.column();
}
};
using bson_stream_reader = basic_bson_reader<jsoncons::binary_stream_source>;
using bson_bytes_reader = basic_bson_reader<jsoncons::bytes_source>;
} // namespace bson
} // namespace jsoncons
#endif // JSONCONS_EXT_BSON_BSON_READER_HPP
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